Bug Identifier
Cutworm
Community identification

Cutworm

Agrotis spp., Peridroma spp., and others (General term for larvae of various Noctuidae moths)

Order & Family
Lepidoptera, Noctuidae
Size
Larvae typically range from 1 to 2 inches (2.5 to 5 cm) in length when fully grown. Adult moths vary in wingspan from 1 to 2 inches (2.5 to 5 cm).
See this bug in the Encyclopedia

Natural Habitat

Cutworms are found in various agricultural fields, gardens, lawns, and natural areas. They prefer loose soil where they can easily burrow and hide during the day.

Diet & Feeding

Cutworms are polyphagous, meaning they feed on a wide variety of plants. They are known for cutting down young plants at or just below the soil surface, especially vegetable seedlings, turf grasses, and field crops.

Behavior Patterns

Larvae are primarily nocturnal feeders, hiding during the day and emerging at night to chew on plant stems and leaves, often at the soil line. They may curl into a 'C' shape when disturbed. They undergo complete metamorphosis, pupating in the soil.

Risks & Benefits

Risks: Cutworms are significant agricultural pests, causing considerable damage to young plants and leading to crop loss. They can decimate entire rows of seedlings overnight. Benefits: As part of the food chain, they can be a food source for birds, beneficial insects, and other predators. However, their pest status generally outweighs any ecological benefits in cultivated areas.